Shoe finishing tool



' Feb. 27, 1934. w. A. REED SHOE FINISHING TOOL Original Filed March 26,1929 Patented Feb. 27, 1934 UNITED STATES PATENT OFFICE SHOE FINISHINGTOOL Original application March 26, 1929, Serial No.

350,081. Divided and this application May 27,

1932. Serial No. 613,885

8 Claims.

This invention relates to shoe finishing tools and is herein illustratedas embodied in a heel scouring wheel of the type disclosed in mycopending application Serial No. 350,081, filed March 26, 1929, of Whichthis application is a division.

It is an object of the present invention to provide a finishing toolhaving improved means for securing a finishing cover upon the bodyportion of the tool.

In accordance with a well-known practice, the illustrated finishing toolis provided with a movable means which is operable upon retraction withrespect to the body portion of the tool to clamp a finishing cover uponthe tool body and which is operable upon outward movement with respectto the tool body to unclamp the finishing cover. In accordance with afeature of the present invention, the illustrated tool is provided witha carrier which, upon rotary move ment about an axis extending in thedirection of operative movement of the cover clamping means, is movedaxially by a cam to operate the clamping means. This construction hasthe advantages of simplicity and compactness, and it is easy to operate.

With the above and other objects and features in view the invention willnow be described with reference to the accompanying drawing and pointedout in the claims.

In the drawing,

Fig. 1 is a side elevation of the finishing wheel;

Fig. 2 is a sectional view taken on the line IIII of Fig. 1;

Fig. 3 is a view in perspective of an abrasive cover clamping mechanism;and

Fig. 4 is a fragmentary front elevation showing the wheel illustrated inFig. 1 in operation upon the heel of a shoe.

The body of the improved finishing tool consists of a hub 10, a core 14consisting of a disk of hard material such as wood mounted upon the hub10, and a yieldable support 16 surrounding the periphery of the core 14.The hub 10 may be mounted in any convenient manner upon a driven shaft12, such shafts being commonly provided with a shoulder and a threadedthrust collar between which a finishing tool may be clamped. Theperiphery of the core 14 is herein shown as cylindrical, but it is to beunderstood that a core having any usual form of periphery, for exampleconical or bulged outwardly at the center, may equally well be employed.The core 14 is unitary, that is, it is either integral or built up ofparts which are secured to each other in a manner to prevent relativemovement. A finishing cover 18 of abrasive coated sheet material issecured, in a manner presently to be described, upon the periphery ofthe yieldable support 16. The yieldable support 16 is relatively thinwith respect to the diameter of the core 14 and consists entirely offlannel wrapped in a plurality of layers directly upon the periphery ofthe hard core 14.

Upon each sideface of the body of the scouring wheel is secured a metaldisk 20. The disks 20 are mounted upon the hub 10, each of the disks 20abutting a shoulder 21 formed upon the ends of thehub 10 respectively,and the disks 20 are bolted together by a plurality of screw bolts 22through the core 14, thus clamping the core 14 between them and bindingtogether into a unitary structure the hub 10 and the core 14. The metaldisks 20 thus serve to strengthen and to reinforce the core 14. Thedisks 20 are of such diameter that their rims 24 extend out- Wardly orradially beyond the periphery of the yieldable support 16 to such anextent, allowing for the thickness of the abrasive cover 18, that eitherof the rims 24 may serve conveniently as a guard to protect the upper ofa shoe from the action of the abrasive cover 18. The use of the disks 20in protecting the upper of a shoe is illustrated in Fig. 4, wherein isshown a portion of the scouring wheel in operation upon the side of aheel H attached to a shoe S. The rim 24 of either of the disks 20 mayenter the crease between the heel H and the upper of the shoe S, therebyenabling an unskilled operator to avoid marring the upper. As shown inthe drawing, the peripheral portions of the disks 20 are beveled torender the rims 24 relatively narrow, thereby facilitating their entryinto the crease of the shoe S.

For securing the abrasive cover 18 upon the yieldable support 16, adouble or T-shaped clamping hook 26 having a shank 28 is provided. Thecross-bar or clamping portion of the hook 26 is herein shown as straightand at right angles to the shank 28 to accommodate a cylindricalscouring tool; but where the scouring tool has a periphery other thancylindrical, the cross-bar of the hook 26 will be shaped in accordancewith the periphery of the scouring tool. The shank 28 of the hook 26 isthreaded into a cylindrical carrier member or plunger 30 which fitsloosely within a barrel 32 to permit free sliding and turning movement,i. e., free axial and rotary movement, of the plunger 30 within thebarrel 32. The barrel 32 is secured to the body of the wheel,

being received within a cylindrical recess 34 in the core 14, and theinner end 36 of the barrel 32 being threaded into the hub 10. A slot orkerf 38 is formed across the outer end or" the barrel 32 to accommodatea screw driver for inserting and removing the barrel 32. A slot 40 isformed in the wall of the barrel 32 in a direction inclined to thedirection of the axis of the barrel 32. A handle 42 consisting of a rodor bar is threaded at its inner end into the plunger and extends throughthe slot 42. A recess 44 in one side face of the core 14 and an opening46 in one of the disks 20 and registering with the recess 44 affordsaccess to the handle 42 and permits the operator to turn it about theaxis of the barrel 32. The handle 42 engages the edges of the slot 40,and the latter functions as a cam, upon the turning of the handle 42, tomove the handle 42, the plunger 30 and the hook 26 axially of the barrel32. The axis of the barrel 32, and of the recess 34 within which thebarrel 32 fits, intersects the periphery of the tool body and forconvenience is made radial with respect thereto. The turning of thehandle 42 in one direction will therefore retract the hook 26 to clampthe abrasive cover 18, while the turning of the handle 42 in theopposite direction will move the hook 26 outwardly to unclamp theabrasive cover. At

' each limit of its movement, corresponding, re-

spectively, to clamped and to unclamped positions of the hook 26, thehandle 42 lies within the recess 44 and wholly beneath the outer surfaceof the disk 20, avoiding any undesirable possibilities which mightresult in having any member projecting from the body of the rapidlyrotating wheel. A portion of one of the disks 20 is cut out, asindicated at 48, to compensate for the recesses 34 and 44 and theopening 46, thereby balancing the wheel.

" 1 receive the clip 50 and also the yieldable support 16 which isdepressed into the recess beneath the clip 50, the entire clip 50,including its two uppermost edges, lying below the periphery of theadjacent undepressed portions of the yieldable support 16, or, in otherWords, being countersunk into the yieldable support. The clip 50 issecured to the body of the wheel by a pair of screws 52 which extendthrough the yieldable support 16 into the core 14. A hole is formed inthe center of the clip 50 to accommodate the shank 28 of the hook 26.

In the manufacture of the wheel, the hub 10, the core 14, the disks 20and the barrel 32 are first assembled in the manner above described. Theplunger 30, without the handle 42, is then inserted into the barrel 32,and the threaded end of the handle 42 is then inserted through the slot40 and is tightly screwed into a threaded opening provided in the wallof the plunger 30. One end of the flannel support 16 is then tacked tothe periphery of the core 14 and the support 16 is wrapped undermoderate tension around the periphery of the core 14 until a layer ofdesired thickness has been obtained, the support 16 oocupying the fullwidth of space between the inner surfaces of the disks 20 and coveringthe periphcry of the core 14. A support comprising about eightthicknesses of flannel has been found to give excellent results. More orless layers of flannel may be employed, however, to compen sate forvariations in the thickness of the abrasive cover 18, so that the rims24 of the disks 20 will extend sufiiciently beyond the periphery of theabrasive cover 18 to enter the crease of the shoe. The loose end of thesupport 16 is then temporarily tacked to the core 14. The clip 50 isthen secured, as above described, in the groove provided for it in thecore 14, depressing the flannel support 16 beneath it into the groove.The tack for temporarily securing the loose end of the support 16 isthen removed, and the loose end cut off at the edge of the clip 50,which, together with the screws 52, retains the support 16 in posi tion.The shank 28 of the hook 26 is then inserted into the central hole ofthe clip 50, the support 16 having been punched through to permit theentry of the shank 28, and the threaded end of the shank 28 is screwedinto the plunger 30.

The strip 18 of abrasive material is applied to the wheel by wrapping itabout the periphery of the support 16, the ends of the abrasive strip 18overlapping each other and being notched to accommodate the shank 28 ofthe hook 26, the adjacent portion of the shank 28 being flattened in aplane normal to the T bar of the hook 26 to enable the shank 28 to enterrelatively narrow notches in the abrasive strip 18. The handle 42 isthen turned to clamping position, thereby retracting the hook 26 whilethe operator holds the T bar of the hook 26 in position to enter theconcavity of the clip 50 and to clamp both ends of the abrasive striptherein. The material of the abrasive strip 18 is supplied in variousthicknesses, and to accommodate such variation in thickness, the hook 26may be adjusted inwardly or outwardly with respect to the wheel, oraxially with respect to the plunger 30, by reason of its threadedengagement with the latter. Such adjustment is effected by turning thehook 26 through one or more half turns in the desired direction. Whenthe handle 42 is in clamping position, the T bar of the hook 26 liessubstantially within the concavity of the clip 50 and wholly below theadjacent undepressed portions of the flannel support 16.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. A rotary shoe finishing tool adapted to carry a finishing cover,comprising a tool body, movable means operable upon retraction withrespect to said tool body to clamp the finishing cover upon said bodyand operable upon outward movement with respect to said body to unclampthe finishing cover, a carrier for said clamping means constructed andarranged for rotary movement about an axis which extends in thedirection of operative movement of said clamping m ans, and a camcarried by said tool body, said cam and said carrier being constructedand arranged to move said extends in the direction of operative movementof said hook, and means carried by said tool body and constructed andarranged upon rotation of said carrier to move said carrier axially tooperate said hook, said hook having a shank portion which engages thecarrier to transmit the axial movement of the carrier to the hook butwhich is rotatable relatively to the carrier to enable the hook to bemaintained in a desired angular position about the axis or" the carriernotwithstanding the rotation of the carrier about said axis.

3. A rotary shoe finishing tool adapted to carry a finishing cover,comprising a tool body, a hook operable upon retraction with respect tosaid tool body to clamp the finishing cover upon said body and operableupon outward movement with respect to said body to unclamp the finishingcover, a carrier for said hook constructed and arranged for rotarymovement about an axis which extends in the direction of operativemovement of said hook, and means carried by said tool body andconstructed and arranged upon rotation of said carrier to move saidcarrier axially to operate said hook, said hook having a shank portionwhich is in threaded engagement with said carrier for relative rotationabout the axis of said carrier whereby said hook may be adjustedinwardly and outwardly of said tool body and may also be maintained in adesired angular position about the axis of the carrier notwithstandingthe rotation of the carrier about said axis.

4. A rotary shoe finishing tool adapted to carry a finishing cover,comprising a tool body, movable means operable upon retraction withrespect to said body to clamp the finishing cover upon said body andoperable upon outward movement with respect to said body to unclamp thefinishing cover, and operating means for said clamping means comprisinga barrel secured to said body and having an inclined cam slot in itswall, and a cylindrical member constructed and arranged for both turningand sliding within said barrel and having a handle extending through andengaging said cam slot, said clamping means being secured to saidcylindrical member whereby said handle upon being turning in onedirection will act upon said cam slot to retract said cylindrical memberand said clamping means to cover clamping position, and upon beingturned in the opposite direction will act upon said cam slot to movesaid member and said clamping means to unclamping position.

5. A rotary shoe scouring tool adapted to carry an abrasive cover,comprising a tool body, a barrel secured in said tool body and havingits axis intersecting the periphery of said tool body, a cylindricalmember within said barrel and both axially and rotatably movable withrespect thereto, and a clamping hook for the abrasive cover having itsshank secured to said member and extending axially with respect to saidbarrel and outwardly with respect to said tool body, said barrel havinga cam slot formed in its wall in a direction inclined to the directionof the axis of said barrel, and said member having a handle extendingthrough and engaging said cam slot whereby upon turning said handle inone direction said cam slot will cause said member to retract said hookto clamp the cover upon said tool body, and upon turning said handle inthe opposite direction said cam slot will cause said member to extendsaid hook to unclamp the abrasive cover.

6. A rotary shoe scouring tool adapted to carry an abrasive cover,comprising a tool body, a hook having its shank extending inwardly withrespect to said tool body, said hook being constructed and arranged uponretraction with respect to said body to clamp the abrasive cover theretoand upon reverse movement to unclamp the abrasive cover, a barrelsecured within said tool body substantially in alinement with the shankof said hook, said barrel having an inclined cam slot formed in itswall, and a cylindrical member slidably and rotatably engaging theinterior of said barrel and threadedly engaging the shank of said hook,said cylindrical member having a handle extending through and engagingsaid cam slot whereby, upon turning said handle in one direction saidcam slot will cause said member to retract said hook to cover clampingposition and upon turning said handle in the opposite direction said camslot will cause said member to move said hook to unclamping position,said hook being adjustable inwardly and outwardly of said tool body toaccommodate abrasive covers of various thicknesses by reason of itsthreaded connection to said cylindrical member.

7. A device for clamping an abrasive cover to a shoe scouring tool,comprising a barrel constructed and arranged to be secured to the toolbody and having in its wall a cam slot inclined to the direction of theaxis of said barrel, a cylindrical member slidably and rotatablyengaging the interior of said barrel and having a handle extendingthrough and engaging said cam slot, and a clamping hook for the abrasivecover having a threaded engagement with said cylindrical member, saidclamping hook being movable axially of said barrel to clamping andunclamping position by the action of said inclined slot upon said handlewhen said handle is turned, and said clamping hook also being adjustedaxially of said cylindrical member to accommodate abrasive covers ofvarious thicknesses by reason of its threaded engagement with saidcylindrical member.

8. A shoe scouring wheel adapted to carry an abrasive cover, comprisinga hub, a core, a yieldable support mounted on the periphery of said corefor carrying the abrasive cover, a T-shaped clamping hook for theabrasive cover, and a metal clip of concave cross-section disposedacross the periphery of said wheel and secured to said core,

said clip being countersunk into said yieldable support and serving toreceive the cross bar of said clamping hook within its concavity as aclamping abutment for said hook and serving also to retain saidyieldable support upon said core.

WILLIAM A. REED.

